Good morning! If you are looking specifically for political candidates who are pro-gun-safety, there are some links that have done this work for you.  Take a look.

Action No. 1 You do not have to be a member (or admit to being one!) to look at aarp’s site:
https://www.aarp.org/politics-society/government-elections/info-2018/midterm-candidate-guide.html?intcmp=DC-POL-ELC-R1C1

Action No. 2 Gun Sense Voter is a campaign of Everytown for Gun Safety Action Fund and Moms Demand Action for Gun Sense in America.
https://gunsensevoter.org/?source=mdmo_MomsHomepage&utm_source=md_m_&utm_medium=_o&utm_campaign=MomsHomepage

Action No. 3 Everytown is a movement of Americans working together to end gun violence and build safer communities. Their motto is Everytown starts with you and it starts in your town.
https://everytown.org/throwthemout/?source=etno_ETActPage&utm_source=et_n_&utm_medium=_o&utm_campaign=ETActPage

Have a mellow Monday – Betty